diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 36d7f270b14d..e1736b80b6b0 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -197,6 +197,9 @@ static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0, 0x152, 0x252, 0 }; #define W83627EHF_REG_ALARM2 0x45A #define W83627EHF_REG_ALARM3 0x45B +#define W83627EHF_REG_CASEOPEN_DET 0x42 /* SMI STATUS #2 */ +#define W83627EHF_REG_CASEOPEN_CLR 0x46 /* SMI MASK #3 */ + /* SmartFan registers */ #define W83627EHF_REG_FAN_STEPUP_TIME 0x0f #define W83627EHF_REG_FAN_STEPDOWN_TIME 0x0e @@ -469,6 +472,7 @@ struct w83627ehf_data { s16 temp_max[9]; s16 temp_max_hyst[9]; u32 alarms; + u8 caseopen; u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */ u8 pwm_enable[4]; /* 1->manual @@ -874,6 +878,9 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) (w83627ehf_read_value(data, W83627EHF_REG_ALARM3) << 16); + data->caseopen = w83627ehf_read_value(data, + W83627EHF_REG_CASEOPEN_DET); + data->last_updated = jiffies; data->valid = 1; } @@ -1655,6 +1662,48 @@ show_vid(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); + +/* Case open detection */ + +static ssize_t +show_caseopen(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct w83627ehf_data *data = w83627ehf_update_device(dev); + + return sprintf(buf, "%d\n", + !!(data->caseopen & to_sensor_dev_attr_2(attr)->index)); +} + +static ssize_t +clear_caseopen(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct w83627ehf_data *data = dev_get_drvdata(dev); + unsigned long val; + u16 reg, mask; + + if (strict_strtoul(buf, 10, &val) || val != 0) + return -EINVAL; + + mask = to_sensor_dev_attr_2(attr)->nr; + + mutex_lock(&data->update_lock); + reg = w83627ehf_read_value(data, W83627EHF_REG_CASEOPEN_CLR); + w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg | mask); + w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg & ~mask); + data->valid = 0; /* Force cache refresh */ + mutex_unlock(&data->update_lock); + + return count; +} + +static struct sensor_device_attribute_2 sda_caseopen[] = { + SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen, + clear_caseopen, 0x80, 0x10), + SENSOR_ATTR_2(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen, + clear_caseopen, 0x40, 0x40), +}; + /* * Driver and device management */ @@ -1711,6 +1760,9 @@ static void w83627ehf_device_remove_files(struct device *dev) device_remove_file(dev, &sda_temp_type[i].dev_attr); } + device_remove_file(dev, &sda_caseopen[0].dev_attr); + device_remove_file(dev, &sda_caseopen[1].dev_attr); + device_remove_file(dev, &dev_attr_name); device_remove_file(dev, &dev_attr_cpu0_vid); } @@ -2269,6 +2321,16 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev) goto exit_remove; } + err = device_create_file(dev, &sda_caseopen[0].dev_attr); + if (err) + goto exit_remove; + + if (sio_data->kind == nct6776) { + err = device_create_file(dev, &sda_caseopen[1].dev_attr); + if (err) + goto exit_remove; + } + err = device_create_file(dev, &dev_attr_name); if (err) goto exit_remove; |